Paivio, Allan. 1941. Dual Coding Theory. Theories of Learning in Educational Psychology. (2013). Web. "Archived copy". Archived from the original on 2011-02-21. Retrieved 2010-06-16.{{cite web}}: نگهداری یادکرد:عنوان آرشیو به جای عنوان (link)
Plessinger, Annie. The Effects of Mental Imagery on Athletic Performance. The Mental Edge. 12/20/13. Web. http://www.vanderbilt.edu
web.archive.org
Paivio, Allan. 1941. Dual Coding Theory. Theories of Learning in Educational Psychology. (2013). Web. "Archived copy". Archived from the original on 2011-02-21. Retrieved 2010-06-16.{{cite web}}: نگهداری یادکرد:عنوان آرشیو به جای عنوان (link)